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fs: add just in case bounds checking to linux/macos dirent read
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1 changed files with 3 additions and 0 deletions
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@ -746,6 +746,8 @@ namespace ams::fssystem {
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std::memset(out_entry->name, 0, sizeof(out_entry->name));
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const auto name_len = std::strlen(ent->d_name);
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AMS_ABORT_UNLESS(name_len <= fs::EntryNameLengthMax);
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std::memcpy(out_entry->name, ent->d_name, name_len + 1);
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out_entry->type = (ent->d_type == DT_DIR) ? fs::DirectoryEntryType_Directory : fs::DirectoryEntryType_File;
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@ -753,6 +755,7 @@ namespace ams::fssystem {
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/* If we have to, get the filesize. This is (unfortunately) expensive on linux. */
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if (out_entry->type == fs::DirectoryEntryType_File && !m_not_require_file_size) {
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/* Set up the temporary file path. */
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AMS_ABORT_UNLESS(base_path_len + name_len + 1 <= PATH_MAX);
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std::memcpy(path_buf + base_path_len, ent->d_name, name_len + 1);
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/* Get the file stats. */
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